2024 Iowa Code 510.12 – Written agreement necessary

2023 Iowa Code 510.12 – Written agreement necessary

2022 Iowa Code 510.12 – Written agreement necessary

2020 Iowa Code 510.12 – Written agreement necessary

2018 Iowa Code 510.12 – Written agreement necessary

2016 Iowa Code 510.12 – Written agreement necessary

2014 Iowa Code 510.12 – Written agreement necessary.

2009 Iowa Code 510.12 – Written agreement necessary